We discovered a serious issue for Audio/MIDI applications on Windows 10. After some time (a few seconds or a few minutes) audio recording or playback will contain noise (drop outs).
Steinberg Cubase 8 application shows this usually after a few seconds.
During our analysis we discovered the following behaviour of Windows 10:
The Windows MMCSS services will get disabled for any audio application when the user interacts with the computer. As a result the audio processing/streaming threads get suddenly the same importance as non time critical programs. Frequent audio drop outs will start to happen. We observed that moving windows and switching between running applications will result in this issue.
We currently work with Microsoft to investigate and hopefully soon resolve the issue.